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CVE-2026-26021

🚨 CRITICAL

set-in provides the set value of nested associative structure given array of keys. A prototype pollution vulnerability exists in the the npm package set-in (>=2.0.1, < 2.0.5). Despite a previous fix t...

Published
Feb 11, 2026
Last Modified
Feb 13, 2026
Views
13
Bookmarks
0

Description

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set-in provides the set value of nested associative structure given array of keys. A prototype pollution vulnerability exists in the the npm package set-in (>=2.0.1, < 2.0.5). Despite a previous fix that attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using Array.prototype. This has been fixed in version 2.0.5.

Affected Products (1)

set-in_project - set-in

Version: *

CVSS Scores

CVSS 3.1 9.8
9.8
CRITICAL
CVSS 2.0 9.8

References

github.com github.com

Additional Information

Source
security-advisories@github.com
State
Analyzed

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